Belt connecter



- v May 28, 1935. E. H. KREMER 7 BELT CONNECTER Filed Feb. 13, 1954' 2Sheets-Sheet 1 Md Didi; j

ATTOEWLYS BELT CONNECTER Filed Feb. 15, 1934 2 Sheets-Sheet 2 Ma i/V70[DWAFD b. Kit M53.

Patented May 1935 BEL'LCONNECTER Edward H. Kremer, Dayton, oiiiagjgsigabr The Dayton Rubber Manufacturing Company, Dayton, Ohio;aco'rporationof Ohiod j v f v H: Application February 13, 1934, Serialnoi 'uroe r This invention relates -to;belt connecters and especially tothose having interlacing clamping members and pintle members heldtherebetween'.

The problem encountered by the applicant in '5 making this invention wasto provide a belt connecter of the above class, which would embody meansto prevent the pintle pins from becoming dislodged or from sliding downwithin the clamping members; and at the same time to prevent the rapidwear of the pintle members as well as to-localize the wear in a positionbest adapted to endure it.

One object of my invention is to-provide a belt conneeterhaving-interlacing clamping members and pintle members heldtherebetween, one of these clamping members having provision forengaging one of the pintle members to hold it securely in place. V 7

Another object is to; provide such a clamping member which holds one ofthe pintle members securely in place and at the same time providing thepintle members with cooperating projections and depressions of unequaldepths in order to carry the load and provide bearing support for theclamping members. I e I I Anotherobject is to provide such a'clampingmember having means 'for holding a pintle member securely thereto, thispintle member and its cooperating pintle member having provision forpreventing their disengagement from one another, either longitudinallyor transversely, one of the pintle members having laterally extendedshoulders which engage a corresponding groove in the opposite pintlemember.

Another object is to provide such a belt con necter with the clampingmembers having fiattened' nose portions engaging correspondinglyflattened back portions of the pintle members, one of the, pintlemembers being anchored securely to its clamping member; V

Another object is to provide such'a belt con necte'r with clampingmembers and pintle'mjem bers as above described, whereby the pintle mem'bers will be prevented from dislodgment from one another, and eachpintle member will like wise be prevented from sliding down and cut;ting the clamp. V e

In the drawings? V 1, I Figure 1 is a top plan view of the beltconnecter of my invention, joining the ends of a belt Figure 2 is a sideelevation "of .the'fbelt connecter and belt ends .shown in Figure 1; ,1

'Figure 3 is a bottom plan view of' the belt connecter and belt endsshownin Figures 1 and ff 1' Y l 1 l V Figure 4 is a. vertical 4-4 ofFigure 1;x

section along the line Figure 5 is ahorizontal section {along the line 55of Figure 2 a Figure 6 is a='side"elevation similar to Figure 2, but,with the ends of the belt angledfas when passing aro1i'rid"a"pu1leyofsmall diameter;

' Figure 7' is-a-to'p' plan view'of'thetwointerengaging pintle membersalone,-without their clampingmembers;

7 Figure 8 is" a perspectiveview of the-two pintle members separated;

Figure 9- is -a top; plan view ofjthe clamping member to-which one ofthe pintle members is anchored}? I V Figure 10 is-a 'front "endelevationof the clamping member shown in Figure 9; Y

v Figure ll is a perspective view of modified forms of pintle "members,ohe of which has "edge projections to prevent the transversedislodgmentthereof.- V

Referring to thefdrawings in' detail, Figure 1 shows a belt ofrubber-and-fabric layer construction having ends I and 2 which are to bejoined by a belt'connecter. The belt connecter is provided withinterlacing clamping members 3 and 4 adapted,respectively to be attachedto thebelt'endsl and '2. I a e The clamping-member's 3' and 4 are bentin a shape roughlylresembling theletterbfthe upper arms i and 6 thereofbeingsubstantially It understoodfihowever, that a, solid-belt may beused andfthese bent portions=9 and u omitted, without departing from'the scope of my inventioni These 7 cut-away portions H enable the innersurface of the belt to become shorter than the outer'surface' andthusmore readily adapt the" beltto pass "around pulleys of small diameters.

terlace with one anoth r, thesetonguesl having nose portions I4"and l5of flattened construe-o tion toi provide seats for the pintlejmembershereinafter described; The clamping members 3 and 4 are 's'ecureditiotheir respective belt ends by omeanslof the fclampirig f screws 16passing through the belt and engaging its maximum thickness. j

e The oppos' eclamping members 3 and 4 are provided witht'ongues l2 andl 3 adapted to in- Between the clamping members are arranged pintlemembers I! and I8 respectively. These pintle members are adapted toprovide rocking engagement with one another and thereby flexibly carrythe load between the opposite ends of the belt, These pintle members areof elongated construction. The'male pintle member I8 is providedwith abody portion [9, preferably with an arcuateLfaceZD andj a r'ib2lextendin therealong. 1 The rib 2f-is extended beyondeaoh 7 end of thebody portion l9' in the end projection i 9 which is held between theshoulders thereby provided. The female pintle memberii's' provided witha groove 2Jgrunningoontinuously.

through the heads 24"and' .andthe. body portion 26. This groove 21 isadaptedto 'receive rib; 2 l the male nt e: member. but is of shallowerdepth, so that the opposing surfaces 28 and 20 ,of the twopintlejmembers will be spaced'fr'om one another by the: cooperating rib2| and groove 21; Ihe-pintle heads 24 are cut away on either'side of the'grooveqflhas at 29,-to permit th e end projections 22 and 23 ofthemalepintle member to rock freely in the groove portions 21 -of'theheads and 25 without binding. The cut-away portions 29 also preventthe projections 22 .and; 23 from becoming dislodged transversely.Thefact that the male bodyportion i9 is held betwcnfih end flanges 24 ofthe female pintle member also-prev'ents tu nal. dis dementsth ecfr Oneofthefclampmggmembers. such as the clamping member 4, is provided-with;cut-away portions or slots 30 adaptedto receive the rearward ends ofthe flanged heads 2 A .of;,the female pintle member. These slots orgrooves thus securely anchor the femalgpihtle member in engagement-withthe clampin'g member, as the back surface 3! of the pintle member isflattened to-engage the inside flat-surface of theflattened nose portionMv of ,the plamping member; 4. The pintle member ll may be anchored inthe slots 30 by any suitablemeans, such as by welding or brazing, or maybe .le ft: detachable The belt connecter of invention thus pre} ventscockingfor dislodgmentyof the pintle members. from .engagement with oneanother;

' and also preventsslidingedownf which occurs when. either ofthe pintlemembersdrops down so that its lower edge ,tendstocut into the clampingmembers.

It will be understood, however; that diiferent I typesof pintle pins canbeused in *place of those previously described. For .example; onepintle.

pin 33 may: be, provided with, wings alongits edges (Figure 11): to.prevent transversedislodg ment or cooking of the pintlepinsand thefemale pintle member thereof; anchored inthe slots in the clampingmember, in .themanner previously described.

.The belt withwhich this clamping member is used may-be of any suitabletype, but is preferably er rubber-and -fabric, construction. In suchavbelt the construction isp're ferably such that 'the' belt issubstantially inextensible' along its neutral axis, slightly extensiblealong its outer part, and slightly. compressible along its innerportioni- In this; manner the belt is adaptedto pass freely aroundpulleys'of small diameter. l

' means.

In assembly, the clamping members 3 and 4 are interlaced so that theirtongue portions l2 and i3 pass one another, providing a space betweenthem in which the pintle members I! and H3 are placed. The rib portion2i is placed in engagement with the groove 21 and the body portion i9aligned so that it lies between the fiang ed heads 24; Therearward'portions of the shoulders Hand, 25 are inserted in the grooves38 of "the clamping member 3 (Figure 10) and therein secured by weldingor by other suitable The belt ends I and 2 are then insertedbetweenthe'upper and'lower arms 5 and J or 6 and 8 of the clamping members 3and 4,

tnelatter of which are then clamped together "through thelmaximumthicknessof the belt by 'means of clamping screws Hi.

In operation as the belt ends i and 2 pass from the. straight runposition of Figure 2 to the angled position of Figure 6, as in passingaround a pulley of small diameter, the clamping members 3-and 4 willbeangled relative to one anotherh The twopintle portions will carry the1oad,=and the rib 2i of one willrock in the groove 2? of. the other,therebyproviding bearing support. The end projections 22 and 23 will, byengaging the-cut-away portions or wings 29, prevent lateraldisengagement, whereas the flanged heads 24 will preventlongitudinaldisengagement of the body portion 19 heldtherebetween -.The slots 30will furthermore prevent the sliding-down of the pintle member I! heldtherebetween V e .In. this manner the frequent interruptions of servicewhich 7 result from disengagement or ffsliding-down of the pintlemembers in ordinary belt connecters will beprevent'ed, and. theconsequent breaking of the clamp or wearing of the clamping membersgreatly reducedl. I

It will be understood that the projections 22 and 23 of themale pintlemember l9 ,(Figure 8) maybe omitted without departing from the scope ofinyinvention. In this arrangement sliding-down would be prevented, butfcocking could" stilltake place In assembling'this clamp without the endprojections:22 and 23, the clamps maylbe first attached tothe-belt ends,and the pintle members afterward inserted.

' It will be understood that I desire to comprehend within my inventionsuch modifications as maybe necessary to adapt it to varyingconditionsand uses. 7

Having thus fully described my. invention,

what I claimas new and desire to securevby Letters Patent is: v

l. A belt connecter comprising interlaced l 3. A belt. connectorcomprising interlaced clamping/members with pintle members"disposedtherebetweeri, said clamping members having flattened noseportions, one of saidnose portionshaving acut-awLay portion, and one ofsaid pintle members having at one end a projection to enter saidcut-away portion to be held therein. 7

4. A belt connecter comprisingv interlaced clamping members with pintlemembers disposed therebetween, one of said clamping members having aslotted nose portion, and one of said pintle members having flanged endsto enter said slotted nose portion. v

5. A belt connecter comprising interlaced clamping members with pintlemembers disposed therebetween, said pintle members having aninter-engaging projection and depression to provide bearing supportbetween said clamping members, said projection being deeper than saiddepression so as to separate the opposing surfaces of said pintlemembers, one oi said pintle members being anchored to one of saidclamping members.

6. A belt connecter comprising interlaced clamping members with pintlemembers disposed therebetween, one of said pintle members having a ribwith .projecting ends, theother of said pintle members'having a grooveto receive the rib and flanged ends to receive the projecting ends, saidflanged pintle member being anchored to one of said olampingmembers.

'7. A belt connecter comprising interlaced clamping members with pintlemembers disposed therebetween, one of the pintle members having aflange, one of said clamping members having a nose portion with a slottherein to receive said flange, said pintle members having aninter-engaging rib and groove, and means on one of said pintle membersto prevent the longitudinal dislodgment of onepintle member fromtheother.

8. A belt connecter comprising interlaced clamping members with pintlemembers disposed therebetween, one of the pintle members having aflange, oneof said clamping members having a nose portion with a slottherein .to receive said flange to anchor the pintle thereto, saidpintle members having an inter-engaging rib and groove, and means on oneof said pintle members to'prevent the longitudinal and transversedislodgment of one pintle member from the other.

9. A belt connecter comprising interlaced clamping members with pintlemembers disposed therebetween, one of said clamping members having anose portion with means to anchor one of said pintle members thereto,said pintle members having an inter-engaging rib and groove, and commonmeans on one of said pintle members to prevent the longitudinal and thelateral dislodgment of one pintle member from the other.

10. A belt connecter comprising interlaced clamping members with pintlemembers disposed therebetween, one of said clamping members having anose portion with means to anchor one of said pintle members thereto,one of said pintle members having at each end lateral edge projectionsthereon, the other of said pintle members having end projections fittingbetween the lateral projections to'prevent the dislodgment of saidpintle members from one another. V

11. A belt connecter comprising interlaced clamping members with pintlemembers disposed therebetween, one of said clamping members having anose portion with means adapted to anchor one of said pintle membersthereto,

one of said pintle members having spaced wings along each edge thereofto prevent the trans-' verse dislodgment of said pintle members from.

one another.

12. A belt connecter comprising interlaced clamping members with pintlemembers disposed therebetween, oneof said clamping members having a noseportion with means to anchor one of said pintle members thereto, one ofsaid pintle members having longitudinally disposed end projectionsthereon, the other pintle member having lateral end projections thereon,said end projections and lateral end projections being adapted toprevent the transverse and longitudinal dislodgment of one pintle memberfrom the other.

13. A belt connecter comprising interlaced clamping members with pintlemembers disposed therebetween, one of said clamping members and one ofsaid pintle members having inter-engaging portions to anchor said pintlemember to said clamping member, the opposing faces of said pintlemembers being spaced with an inter-engaging rib and groove therebetweento separate said spaced faces, said groove being shallower than saidrib.

EDWARD H. KREMER.

